Thanks John and Greg :)


>>-----Original Message-----
>>From: Greg Morphis [mailto:gmorp...@gmail.com]
>>Sent: 21 June 2011 18:45
>>To: cf-talk
>>Subject: Re: SQL Query Problem
>>
>>
>>
>>if your tables are large, you'll probably see a better performance from
>>select id from TableA a
>>where not exists
>>(select 1 from TableB b
>>where a.id = b.id)
>>
>>
>>On Tue, Jun 21, 2011 at 12:41 PM, John M Bliss 
>><bliss.j...@gmail.com> wrote:
>>>
>>> select * from b where id not in (select id from a)
>>>
>>> On Tue, Jun 21, 2011 at 12:37 PM, Jenny Gavin-Wear <
>>> jenn...@fasttrackonline.co.uk> wrote:
>>>
>>>>
>>>> Two tables each containing a shared primary key ID.
>>>>
>>>> I am trying to create a query that lists records from table B 
>>that are not
>>>> in table A.
>>>>
>>>> Many thanks,
>>>>
>>>> Jenny
>>>>
>>>>
>>>>
>>>>
>>>>
>>>
>>> 
>>
>>

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